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Aim to study the effectiveness of the combined treatment of contractures of proximal interphalangeal joint. Material and methods. The study included 30 patients with a diagnosis of post-traumatic mixed contracture of the proximal interphalangeal joint. The patients were divided into 3 groups. In the first group, the patients were administered a combined treatment, including the arthrolysis of the joint, the imposition of a dynamic distraction apparatus, the injection of hyaluronic acid preparations and platelet-rich plasma. The second group of patients underwent the arthrolysis of the joint and the application of the apparatus. The third group underwent only arthrolysis. Results. The results of the study indicated the effectiveness of all three methods of treatment. However, in the first group where the combined treatment was used, the registered improvement in the angles of joint function and a decrease in pain were significant, which ultimately led to better functional indices of the hand and a shorter treatment period.